Ultrasonic surgical suction operation device

Abstract

The present invention relates to the technical field of medical instruments, and in particular to an ultrasonic surgical suction operation device, comprising an ultrasonic scalpel, a first channel and a second channel which are sealed and connected to each other are formed in a horn and the scalpel respectively; the front end of the second channel forms a negative pressure inlet, and the rear end of the first channel forms a negative pressure outlet; a liquid inlet channel extending forward along the axis of the scalpel is formed between the scalpel shell and the scalpel, the liquid inlet channel is closed on one side close to the ultrasonic transducer, and a liquid outlet is formed at the front end of the liquid inlet channel; the front end of the scalpel extends out of the scalpel shell; the beneficial effect is that the ultrasonic surgical suction operation device in this patent can improve the surgical effect from multiple angles, and greatly improve the flexibility of use of the ultrasonic surgical device.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an ultrasonic surgical aspiration operation device. Background Art

[0002] Ultrasonic scalpels have been widely used for more than 20 years. They use transducers to achieve mutual conversion between electrical energy and acoustic energy. Ultrasonic scalpels, through the high-frequency vibration of the transducer and the amplification of the horn, give the surgical tool cavitation effect, thermal effect, mechanical effect, etc.

[0003] Ultrasonic scalpels are widely used in many surgical fields, such as laparoscopic surgery, thoracic surgery, neurosurgery, etc. Its advantages such as high precision, low trauma and rapid recovery make ultrasonic scalpels one of the important tools in modern surgery. With the continuous development of medical technology, ultrasonic scalpels will continue to play an important role in the field of surgery and protect the health of patients.

[0004] The ultrasonic scalpel handle and scalpel held by the doctor are prone to overheating during work. The overheating of the handle is mainly caused by the internal ultrasonic transducer, and the overheating of the scalpel is mainly caused by high-frequency vibration. When both are overheated, it not only reduces the safety of the operation, but also causes the scalpel and ultrasonic transducer to be out of the efficient working temperature range, thereby causing the efficiency of the ultrasonic scalpel to be too low. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an ultrasonic surgical aspiration operation device, which solves the technical problems of poor safety and low efficiency of ultrasonic surgical knives in the prior art.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, the present invention provides an ultrasonic surgical suction operation device, comprising an ultrasonic scalpel, the ultrasonic scalpel comprising a scalpel shell, a scalpel body and an ultrasonic transducer, the scalpel body being located in the scalpel shell; the ultrasonic transducer comprising an amplitude transformer, the scalpel body being connected to the front end of the amplitude transformer; a first channel being formed in the scalpel body, a second channel being formed in communication with the first channel in the amplitude transformer; a negative pressure inlet being formed at the front end of the second channel, and a negative pressure outlet being formed at the rear end of the first channel; a liquid inlet channel extending forward along the axis of the scalpel body being formed between the scalpel shell and the scalpel body, the liquid inlet channel being closed on one side close to the ultrasonic transducer, and a liquid outlet being formed at the front end of the liquid inlet channel; the front end of the scalpel body extending out of the scalpel shell to form an atomization area connecting the liquid outlet and the negative pressure inlet between the liquid outlet and the scalpel body.

[0010] (III) Beneficial effects

[0011] The beneficial effects of the present invention are as follows: the ultrasonic surgical aspiration operation device of the present invention can input medium liquid, such as physiological saline, into the liquid inlet channel. When the system is working, a negative pressure module is externally connected to the negative pressure outlet, thereby generating negative pressure at the rear end of the first channel of the amplitude transformer, and the negative pressure is transmitted to the negative pressure inlet at the front end of the scalpel through the first channel and the second channel.

[0012] The medium liquid output from the liquid outlet will flow through the part of the scalpel exposed from the outer shell under natural flow or the negative pressure of the negative pressure inlet. Under the action of the high-frequency vibration of the scalpel, the medium liquid will be atomized, and at the same time, the temperature of the scalpel will be reduced.

[0013] When the negative pressure outlet is connected to the negative pressure module, under the action of the negative pressure inlet, most of the atomized medium liquid, or the medium liquid that is not completely atomized, will enter the second channel. In this way, the flow direction of the medium liquid output from the liquid outlet will maintain a predetermined trajectory, and the flow direction of the atomized medium liquid will also maintain a predetermined trajectory, that is, it will flow close to the front end of the scalpel. Therefore, the atomized medium liquid and the flowing medium liquid will not have a significant negative impact on the visibility of the surgical process. At the same time, useless tissue cut during the operation will also be sucked away by the negative pressure inlet to ensure the cleanliness of the surgical site.

[0014] At the same time, since the position that contacts human tissue is the front end of the scalpel, when the system is working, the front end of the scalpel will be constantly flushed by atomized or non-atomized medium liquid, thereby ensuring the cleanliness of the front end of the scalpel and reducing the temperature of the scalpel in real time, thereby ensuring the improvement of the use effect of the ultrasonic surgical suction operation device.

[0015] Furthermore, the medium liquid sucked into the negative pressure inlet can flow through the second channel and the first channel successively, and then take away the heat of the scalpel and the ultrasonic transducer through the medium liquid, thereby cooling the scalpel and the ultrasonic transducer, which is beneficial to ensure that the ultrasonic scalpel always maintains the required temperature range when in use.

[0016] That is, the ultrasonic surgical suction operation device in this patent can at least improve the surgical effect in the following aspects:

[0017] First, it can improve surgical visibility and thus improve surgical results by flushing the surgical site with atomized or non-atomized medium liquid;

[0018] Secondly, the front end of the scalpel can be flushed with atomized or non-atomized medium liquid, thereby reducing the temperature of the front end of the scalpel and improving the cleanliness and vibration efficiency of the front end of the scalpel, thereby improving the surgical effect.

[0019] Thirdly, the medium liquid flowing in the first channel and the second channel can reduce the temperature of the scalpel and the ultrasonic transducer, thereby improving the surgical effect.

[0020] Fourthly, under the negative pressure of the negative pressure inlet, the atomized or non-atomized medium liquid or the set flow direction can also absorb the small volume of tissue and waste liquid cut from the surgical site, thereby ensuring the visibility and cleanliness of the surgical site and improving the surgical effect.

[0021] Fifth, the atomized or non-atomized medium liquid can flush the negative pressure inlet to avoid blockage of the negative pressure inlet and ensure the reliability of the negative pressure suction process.

[0022] At the same time, by applying the method of use in this patent, the ultrasonic surgical device can be flexibly switched to the required standard mode and high-pressure anti-blockage mode, thereby greatly improving the flexibility of use of the ultrasonic surgical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural schematic diagrams of the ultrasonic surgical knife of the present invention;

[0024] Figure 2 This is the second structural schematic diagram of the ultrasonic surgical knife of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the front end position of the ultrasonic surgical knife of the present invention;

[0026] Figure 4 It is a schematic diagram of a partial enlarged structure of the liquid inlet channel of the ultrasonic surgical knife of the present invention;

[0027] Figure 5 It is a partial enlarged structural schematic diagram of the connector position of the present invention;

[0028] Figure 6 This is one of the structural schematic diagrams of the connector of the present invention;

[0029] Figure 7 This is the second structural schematic diagram of the connector of the present invention.

[0030] [Description of Reference Numerals]

[0031] 1. Scalpel shell; 11. Middle shell; 12. Front shell; 121. Conical sleeve; 122. Breaking groove; 2. Scalpel; 200. Second channel; 210. Negative pressure inlet; 21. Conical rod; 3. Ultrasonic transducer; 31. Magnitude changer; 300. First channel; 310. Negative pressure outlet; 32. Piezoelectric ceramic; 4. Liquid inlet channel; 41. Liquid outlet; 5. Connector; 51. Middle part; 52. Connecting part; α, first angle; 500. Threaded part; 6. Handle shell; 61. Grip part; 62. Head shell; 63. Back cover; 7. Push switch; 8. Connecting pipe; 9. Liquid inlet pipe. DETAILED DESCRIPTION

[0032] In order to better explain the present invention, so as to facilitate understanding, the following Figure 1-7 , the present invention is described in detail through specific implementation methods. Figure 2 The orientation is the reference, where Figure 2 The direction to the right is "front", and the direction to the left is "back".

[0033] Embodiment 1:

[0034] Reference Figure 1-Figure 7 The embodiment of the present invention provides an ultrasonic surgical suction operation device, including an ultrasonic scalpel, which includes a scalpel shell 1, a scalpel body 2 and an ultrasonic transducer 3, wherein the scalpel body 2 is located in the scalpel shell 1; the ultrasonic transducer 3 includes an amplitude rod 31, and the scalpel body 2 is connected to the front end of the amplitude rod 31; a first channel 200 is formed in the scalpel body 2, and a second channel 300 connected to the first channel 200 is formed in the amplitude rod 31; a negative pressure inlet 210 is formed at the front end of the second channel 300, and a negative pressure outlet 310 is formed at the rear end of the first channel 200; a liquid inlet channel 4 extending forward along the axis of the scalpel body 2 is formed between the scalpel shell 1 and the scalpel body 2, and the liquid inlet channel 4 is closed on one side close to the ultrasonic transducer 3, for example, an annular sealing ring can be provided on this side to achieve sealing, and a liquid outlet 41 is formed at the front end of the liquid inlet channel 4; the front end of the scalpel body 2 extends out of the scalpel shell 1 to form an atomization area connecting the liquid outlet 41 and the negative pressure inlet 210 between the liquid outlet 41 and the scalpel body 2.

[0035] The operating device also includes a negative pressure module, a liquid supply module, a negative pressure tube 8 and a liquid inlet tube 9. The negative pressure tube 8 is connected to the negative pressure outlet 310. When the device is used through the negative pressure tube 8, the liquid supply module is connected to the liquid inlet tube 9. The liquid inlet tube 9 is connected to the middle shell 11 and is connected to the liquid inlet channel 4.

[0036] The operating device also includes a negative pressure module connected to the negative pressure outlet 310, so that the operating device can switch to the negative pressure suction state of the negative pressure inlet 210 to attract the medium. The liquid supply device outputs the medium liquid including saline and medicine to the liquid inlet pipe 9. When the scalpel body 2 is not vibrating, the affected area can be rinsed or treated with medicine.

[0037] The front end of the surgical knife housing 1 is open, and the liquid outlet 41 is located between the front end of the surgical knife housing 1 and the front end of the surgical knife body 2 .

[0038] In this embodiment, a medium liquid, such as physiological saline, can be input into the liquid inlet channel 4. When the system is working, a negative pressure module is externally connected to the negative pressure outlet 310, thereby generating negative pressure at the rear end of the first channel 200 of the amplitude transformer 31. This negative pressure is transmitted to the negative pressure inlet 210 at the front end of the scalpel body 2 through the first channel 200 and the second channel 300.

[0039] The medium liquid output from the liquid outlet 41 will flow through the portion of the scalpel body 2 that is exposed from the scalpel shell 1 under natural flow or the negative pressure of the negative pressure inlet 210. Under the action of the high-frequency vibration of the scalpel body 2, the medium liquid will be atomized, and at the same time, the temperature of the scalpel body 2 will be reduced.

[0040] At the same time, the atomized medium liquid can flush the surgical site, improve the visibility of the surgical process, and thus improve the safety of the surgical process.

[0041] When the negative pressure outlet 310 is connected to the negative pressure module through the connecting pipe 8, under the negative pressure of the negative pressure inlet 210, most of the atomized medium liquid, or the medium liquid that is not completely atomized, will enter the second channel 300. In this way, the flow direction of the medium liquid output by the liquid outlet 41 will maintain a predetermined trajectory, and the flow direction of the atomized medium liquid will also maintain a predetermined trajectory, that is, it will flow close to the front end of the scalpel body 2. Therefore, the atomized medium liquid and the flowing medium liquid will not have a significant negative impact on the visibility of the surgical process. At the same time, useless tissue cut during the operation will also be sucked away by the negative pressure inlet 210 to ensure the cleanliness of the surgical site.

[0042] At the same time, since the position in contact with human tissue is the front end of the scalpel body 2, and when the system is working, the front end of the scalpel body 2 will be constantly flushed by the atomized or non-atomized medium liquid, so the cleanliness of the front end of the scalpel body 2 can be guaranteed, and the temperature of the scalpel body 2 can be reduced in real time, thereby ensuring the improvement of the use effect of the ultrasonic surgical suction operation device.

[0043] Furthermore, the medium liquid sucked into the negative pressure inlet 210 can flow through the second channel 300 and the first channel 200 successively, and then take away the heat of the scalpel body 2 and the amplitude transformer 31 through the medium liquid, thereby cooling the scalpel body 2 and the amplitude transformer 31, which is beneficial to ensure that the ultrasonic scalpel always maintains the required temperature range when in use.

[0044] That is, the ultrasonic surgical aspiration operation device in this embodiment can improve the surgical effect in at least the following aspects:

[0045] First, it can improve surgical visibility and thus improve surgical results by flushing the surgical site with atomized or non-atomized medium liquid;

[0046] Secondly, the front end of the scalpel body 2 can be flushed with atomized or non-atomized medium liquid, thereby reducing the temperature of the front end of the scalpel body 2 and improving the cleanliness and vibration efficiency of the front end of the scalpel body 2, thereby improving the surgical effect.

[0047] Thirdly, the medium liquid flowing in the first channel 200 and the second channel 300 can reduce the temperature of the surgical blade body 2 and the amplitude transformer 31, thereby improving the surgical effect.

[0048] Fourthly, under the negative pressure of the negative pressure inlet 210, the atomized or non-atomized medium liquid or the set flow direction can also absorb the cut tissue at the surgical site, thereby ensuring the visibility and cleanliness of the surgical site and improving the surgical effect.

[0049] Fifth, the atomized or non-atomized medium liquid can flush the negative pressure inlet 210 to avoid blockage of the negative pressure inlet 210 and ensure the reliability of the negative pressure suction process.

[0050] Specifically, the second channel 300 can be set as a channel extending along the axial direction of the scalpel body 2, and the first channel 200 can be set as a channel extending along the axial direction of the horn 31, or can be set as a curved channel to increase the length of the first channel 200, thereby improving the heat dissipation effect of the medium liquid on the first channel 200. However, it should be noted that the design of the first channel 200 should not excessively affect the vibration model of the horn 31 itself, so setting the first channel 200 as a channel extending along the axial direction of the horn 31 is a simple and effective design form.

[0051] The liquid inlet tube 9 is connected to the middle shell 11 and communicated with the liquid inlet channel 4. The liquid inlet tube 9 is used to connect to the physiological saline supply device.

[0052] Embodiment 2:

[0053] Reference Figure 1-Figure 7 In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0054] The ultrasonic scalpel also includes an axially penetrating connector 5, and the scalpel body 2 is set to a variety of functional models. The connector 5 is located in the scalpel housing 1, and the axial ends of the connector 5 are respectively connected to the rear end of the scalpel body 2 and the front end of the horn 31; the axial ends of the connector 5 form a threaded portion 500, and the two threaded portions 500 are correspondingly screwed into the front end of the horn 31 and the rear end of the scalpel body 2; the scalpel body 2 and the horn 31 are sealed and connected through the connector 5, so that the first channel 200 and the second channel 300 are kept connected; the connector 5 includes a middle portion 51 and a connecting portion 52 connected to the axial ends of the middle portion 51, and the connecting portion 52 is formed with a threaded portion 500.

[0055] In this embodiment, the connector 5 is used to connect the scalpel body 2 and the amplitude transformer 31 , thereby transmitting the vibration energy of the amplitude transformer 31 to the scalpel body 2 while connecting the first channel 200 and the second channel 300 .

[0056] Different surgical knife bodies 2 can be replaced individually, so that the ultrasonic surgical knife can be used as a tool for cutting soft tissue or a tool for cutting hard tissue, further improving the flexibility of use of the ultrasonic surgical knife.

[0057] Furthermore, the connector 5 maintains a sealed connection with the scalpel body 2 and the amplitude transformer 31 to ensure that the medium liquid does not leak out when flowing in the first channel 200 and the second channel 300 .

[0058] The middle part 51 and the connecting part 52 can be set as an integral structure. By setting threaded parts 500 at both ends of the connecting head 5, that is, setting threaded parts 500 on the connecting part 52, and screwing the amplitude transformer 31 and the scalpel body 2, the convenience of the disassembly and assembly process of the connecting head 5 can be improved, thereby improving the efficiency of replacing the blade head of the ultrasonic scalpel.

[0059] Embodiment 3:

[0060] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0061] The scalpel housing 1 includes a middle shell 11 and a front shell 12 which are connected to each other, and the rear end of the front shell 12 is sealedly connected to the front end of the middle shell 11; the ultrasonic scalpel also includes a handle shell 6, and the ultrasonic transducer 3 is supported in the handle shell 6; the front end of the handle shell 6 is detachably sealed to the rear end of the middle shell 11; the gap between the front end of the front shell 12 and the front end of the scalpel body 2 forms a liquid outlet 41.

[0062] In this embodiment, the gap between the front end of the front shell 12 and the front end of the scalpel body 2 is specially designed to form a liquid outlet 41 to ensure that the medium liquid can be sprayed out at an appropriate speed and direction, while matching the position of the negative pressure inlet 210 to achieve an efficient atomization effect.

[0063] Specifically, a nozzle or other flow guiding structure may be provided at the liquid outlet 41 to control the spraying direction and spraying range of the medium liquid.

[0064] The sealing connection in this embodiment can be in the form of a combination of a thread and a sealing ring.

[0065] Embodiment 4:

[0066] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0067] The front shell 12 and the front part of the scalpel body 2 respectively have a conical sleeve 121 and a conical rod 21, and the distance between the conical sleeve 121 and the conical rod 21 decreases in the forward direction along the axis of the scalpel body 2 to form a squeezing area for the medium liquid.

[0068] In this embodiment, the conical sleeve 121 is located at the front end of the front housing 12 and has a conical structure that gradually contracts inwards. The conical sleeve 121 can be an independent component or can be formed integrally with the front housing 12.

[0069] The distance between the conical sleeve 121 and the conical rod 21 decreases in the forward direction along the axis of the scalpel body 2. When the medium liquid flows in the liquid inlet channel 4 toward the liquid outlet 41, its flow rate will gradually increase due to the decrease in the distance, which helps to achieve a more uniform distribution of the medium liquid and is beneficial to the atomization of the medium liquid.

[0070] When the medium liquid is ejected at a faster speed and encounters the vibrating cutter head, its atomization effect is significantly improved. The design of the conical sleeve 121 and the conical rod 21 helps to ensure that the atomized or unatomized medium liquid is more easily sucked into the negative pressure inlet 210 under the guidance of the conical rod 21 and is quickly atomized under the action of ultrasonic vibration.

[0071] Embodiment 5:

[0072] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0073] One or more breaking grooves 122 are formed circumferentially on the conical sleeve 121 . When there are multiple breaking grooves 122 , all the breaking grooves 122 are distributed along the axial direction of the conical sleeve 121 .

[0074] In this embodiment, the conical sleeve 121 can be manually disconnected at the breaking groove 122, such as manually breaking off the front part of the conical sleeve 121, so that the length of the conical sleeve 121 can match the length of the scalpel body 2, and the size of the liquid outlet 41 can be flexibly adjusted, thereby greatly improving the flexibility of use of the ultrasonic scalpel.

[0075] At the same time, by optionally breaking off the conical sleeve 121, the conical sleeve 121 can be conveniently operated in a smaller space, while ensuring a better surgical field of view; and after the conical sleeve 121 is broken off, the length of the atomization zone is increased, so that the atomization effect of the blade is better, and the cooling effect of the blade can also be improved.

[0076] Embodiment 6:

[0077] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0078] The handle housing 6 includes a gripping portion 61 and a head housing 62 which are sealed to each other, and a rear cover 63 which is sealed to the rear end of the gripping portion 61 .

[0079] In this embodiment, the handle housing 6 is mainly divided into two parts: a grip portion 61 and a head housing 62, which are combined together by a sealed connection. The rear cover 63 is sealed to the rear end of the grip portion 61, forming a closed space to accommodate the ultrasonic transducer 3 and other components inside the handle. The sealing design of the rear cover 63 ensures that the inside of the handle will not be contaminated by the outside.

[0080] Specifically, the sealing connection in this embodiment can be in the form of a combination of a thread and a sealing ring.

[0081] Embodiment 7:

[0082] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0083] A socket extends from the front end of the head shell 62, and a socket that can be plugged into the socket is provided at the rear end of the middle shell 11; a first angle α can exist between the socket and the axis of the amplitude transformer 31; a connecting portion 52 is coaxial with the middle portion 51 and connected to the scalpel body 2, and another connecting portion 52 extends at an angle to the axis of the middle portion 51 and connects to the front end of the amplitude transformer 31, and the angle is equal to the first angle α; the head shell 62 includes a straight head shell and an elbow shell, and the connecting portion 5 includes a straight head connecting portion and an elbow connecting portion; when the head shell 62 and the connecting portion 5 are correspondingly set to a straight head shell and a straight head connecting portion, the first angle α is equal to 0°; when the head shell 62 and the connecting portion 5 are correspondingly set to an elbow shell and an elbow connecting portion, the first angle α is between 0°-90°.

[0084] In this embodiment, the connecting portion 52 connected to the scalpel body 2 is coaxial with the middle portion 51 and directly connected to the scalpel body 2. Since it is coaxial with the middle portion 51, it can ensure that the vibration energy is directly transmitted to the scalpel body 2 with minimal loss, thereby achieving efficient surgical operation.

[0085] There is a certain angle between the other connecting part 52 and the axis of the middle part 51, and this angle is equal to the angle of the socket extending from the front end of the head shell 62. In this way, the angle matching of the connecting head 5 and the head shell 62 is achieved, and the working condition where there is an angle between the head shell 62 and the connecting head 5 will not affect the normal transmission of vibration energy.

[0086] The components including the connector 6, the ultrasonic transducer 3, the handle shell 6, the push switch 7 and the connecting tube 8 form a handle assembly. Connectors 5 of different angle models and the head shell 62 form handle assemblies of different angle models. By replacing handle assemblies of different angle models, ultrasonic scalpels with different angles of the scalpel body 2 can be obtained.

[0087] Specifically, this embodiment provides a situation where the elbow connector 5 and the head shell 62 match each other, and also provides a situation where the straight connector 5 and the head shell 62 match each other, so that the ultrasonic scalpel can be flexibly switched into a straight head or an elbow according to the doctor's needs, so that the scalpel body 2 can be operated at a more flexible angle.

[0088] The connection between the first shell 11 and the head shell 62 in this embodiment can avoid interference between the first shell 11 and the angled connector 5 during assembly of the first shell 11, thereby ensuring ease of assembly of the ultrasonic surgical knife.

[0089] In summary, this ultrasonic surgical knife achieves efficient transmission of vibration energy and flexible operation of the surgical knife body 2. Doctors can choose a suitable angle combination according to surgical needs to achieve the best surgical effect.

[0090] When an ultrasonic scalpel with a different angle is needed, the operator only needs to replace the handle assembly of different angle models. The handle assembly includes a handle shell 6 and components arranged on the handle shell 6, an ultrasonic transducer 3 and an amplitude transformer 31 arranged inside the handle shell 6, and a connector 5 connected to the front end of the amplitude transformer 31.

[0091] Embodiment 8:

[0092] Reference Figure 1-Figure 7 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0093] The ultrasonic scalpel also includes a push switch 7 connected to the grip 61 and a wiring harness running through the back cover 63. The push switch 7 and the grip 61, as well as the wiring harness and the back cover 63, are sealed. The ultrasonic transducer 3 also includes a piezoelectric ceramic 32 sleeved on the amplitude transformer 31. The wiring harness is electrically connected to the push switch 7 and the piezoelectric ceramic 32 respectively. The push switch 7 is control-connected to the piezoelectric ceramic 32 to form a push control circuit of the piezoelectric ceramic 32, so that the push switch 7 can control the working state of the piezoelectric ceramic 32.

[0094] In this embodiment, the push switch 7 connected to the grip 61 is a component for controlling the working state of the ultrasonic surgical knife. The ultrasonic transducer 3 is started or stopped by pressing the switch 7, thereby controlling the vibration of the knife head and the atomization of the medium liquid.

[0095] The push switch 7 and the grip 61, as well as the wiring harness and the back cover 63, are all sealed. This sealing design prevents liquid or gas penetration that may occur during surgery, ensures the safety and stability of the electronic components inside the ultrasonic surgical knife, and avoids damage to the ultrasonic surgical knife.

[0096] The piezoelectric ceramic 32 in the ultrasonic transducer 3 is a key element for converting electrical energy into mechanical vibration energy. When the piezoelectric ceramic 32 is subjected to an electric field, it deforms and vibrates, and this vibration is transmitted to the scalpel body 2 through the horn 31, causing it to vibrate at high frequency.

[0097] By pressing the switch 7, the user can conveniently control the working state of the ultrasonic scalpel, realize manual excitation, and then achieve precise operation during the operation, thereby greatly improving the flexibility of using the ultrasonic scalpel.

[0098] When controlling the pressing switch 7, the doctor only needs to press the switch 7 while holding the handle shell, which is easy to operate and requires small operating movements, and is conducive to improving the use efficiency of the ultrasonic scalpel.

[0099] The sealing connection in this embodiment can be in the form of a combination of a thread and a sealing ring.

[0100] Embodiment 9:

[0101] In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0102] It also includes a foot switch, which is controlled and connected to the piezoelectric ceramic 32 to form a foot control circuit of the piezoelectric ceramic 32; the foot control circuit and the press control circuit are independent of each other, so that the press switch 7 and the piezoelectric ceramic 32 can independently control the working state of the piezoelectric ceramic 32.

[0103] In this embodiment, the foot switch can exist alone or at the same time as the push switch 7. When it exists alone, the doctor can control the ultrasonic scalpel by foot pedaling; when it exists at the same time, since the control circuits of the foot switch and the push switch 7 are independent of each other, the doctor can control the ultrasonic scalpel by the foot switch or by the push switch 7, thereby greatly improving the flexibility of use of the ultrasonic scalpel.

[0104] Furthermore, the sealing connection is configured as a sealing ring and / or a sealant to ensure the sealing effect, improve the sealing reliability, and prevent external tissue fluid flushing fluid and other media from entering the ultrasonic surgical knife to ensure the reliability of the use of the ultrasonic surgical knife.

[0105] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-9 can be freely combined to form other implementation modes of the present invention.

[0106] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0107] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0109] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0110] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An ultrasonic surgical suction operation device, characterized in that: The ultrasonic surgical knife comprises a surgical knife shell (1), a surgical knife body (2) and an ultrasonic transducer (3), wherein the surgical knife body (2) is located inside the surgical knife shell (1); the ultrasonic transducer (3) comprises a horn (31), and the surgical knife body (2) is connected to the front end of the horn (31); A first channel (200) is formed in the scalpel body (2), and a second channel (300) connected to the first channel (200) is formed in the amplitude changing rod (31); a negative pressure inlet (210) is formed at the front end of the second channel (300), and a negative pressure outlet (310) is formed at the rear end of the first channel (200); A liquid inlet channel (4) extending forward along the axis of the scalpel body (2) is formed between the scalpel housing (1) and the scalpel body (2); the liquid inlet channel (4) is closed on a side close to the ultrasonic transducer (3); a liquid outlet (41) is formed at the front end of the liquid inlet channel (4); and the front end of the scalpel body (2) extends out of the scalpel housing (1) to form an atomization area between the liquid outlet (41) and the scalpel body (2) that communicates with the liquid outlet (41) and the negative pressure inlet (210).

2. The ultrasonic surgical suction operation device according to claim 1, characterized in that: The ultrasonic surgical knife further comprises an axially penetrating connector (5), the connector (5) being located inside the surgical knife housing (1), and the axial ends of the connector (5) being respectively sealedly connected to the rear end of the surgical knife body (2) and the front end of the horn (31); Both axial ends of the connector (5) form threaded portions (500), and the two threaded portions (500) are correspondingly screwed into the front end of the amplitude changing rod (31) and the rear end of the scalpel body (2); The scalpel body (2) and the amplitude transformer (31) are sealedly connected via the connector (5), thereby maintaining communication between the first channel (200) and the second channel (300); The connector (5) comprises a middle portion (51) and connecting portions (52) connected to two axial ends of the middle portion (51), and the threaded portion (500) is formed on the connecting portion (52).

3. The ultrasonic surgical suction operation device according to claim 2, characterized in that: The surgical knife housing (1) comprises a middle housing (11) and a front housing (12), wherein the rear end of the front housing (12) is sealedly connected to the front end of the middle housing (11); The ultrasonic surgical knife further comprises a handle shell (6), the front end of the handle shell (6) being sealedly connected to the rear end of the middle shell (11), and the ultrasonic transducer (3) being supported in the handle shell (6); The gap between the front end of the front shell (12) and the front end of the surgical knife body (2) forms the liquid outlet (41).

4. The ultrasonic surgical suction operation device according to claim 3, characterized in that: The front shell (12) and the front part of the scalpel body (2) respectively comprise a conical sleeve (121) and a conical rod (21), and the distance between the conical sleeve (121) and the conical rod (21) decreases in the forward direction along the axis of the scalpel body (2) to form a squeezing area for the medium liquid.

5. The ultrasonic surgical suction operation device according to claim 4, characterized in that: One or more breaking grooves (122) are circumferentially formed on the conical sleeve (121); when there are a plurality of breaking grooves (122), all of the breaking grooves (122) are distributed along the axial direction of the conical sleeve (121).

6. The ultrasonic surgical suction operation device according to claim 3, characterized in that: The handle housing (6) comprises a gripping portion (61) and a head housing (62) which are sealed and connected, and a rear cover (63) which is sealed and connected to the rear end of the gripping portion (61).

7. The ultrasonic surgical suction operation device according to claim 6, characterized in that: A socket extends from the front end of the head shell (62), and a socket capable of being plugged into the socket is provided at the rear end of the middle shell (11); a first angle (α) can exist between the socket and the axis of the amplitude transformer (31); One of the connecting parts (52) is coaxial with the middle part (51) and connected to the scalpel body (2), and the other connecting part (52) extends at an angle with the axis of the middle part (51) and is connected to the front end of the amplitude transformer (31), and the angle is equal to the first angle (α); The head shell (62) comprises a straight head shell and an elbow shell, and the connecting portion (5) comprises a straight head connecting portion and an elbow connecting portion; When the head shell (62) and the connecting portion (5) are configured as the straight head shell and the straight head connecting portion respectively, the first angle (α) is equal to 0°; When the head shell (62) and the connecting portion (5) are correspondingly arranged as the elbow outer shell and the elbow connecting portion, the first angle (α) is between 0° and 90°.

8. The ultrasonic surgical suction operation device according to claim 6, characterized in that: The ultrasonic surgical knife further comprises a push switch (7) connected to the gripping portion (61) and a wiring harness penetrating the back cover (63), wherein the push switch (7) and the gripping portion (61), as well as the wiring harness and the back cover (63), are both sealed in connection; the ultrasonic transducer (3) further comprises a piezoelectric ceramic (32) sleeved on the amplitude transformer (31), wherein the wiring harness is electrically connected to the push switch (7) and the piezoelectric ceramic (32) respectively, and the push switch (7) is control-connected to the piezoelectric ceramic (32) to form a push control circuit of the piezoelectric ceramic (32). The ultrasonic surgical knife further comprises a foot switch, wherein the foot switch is controllably connected to the piezoelectric ceramic (32) to form a foot control circuit of the piezoelectric ceramic (32); The pedal control circuit and the pressing control circuit are independent of each other, so that the pressing switch (7) and the piezoelectric ceramic (32) can both independently control the working state of the piezoelectric ceramic (32); The sealing connection is configured as a sealing ring and / or a sealing adhesive.

9. The ultrasonic surgical suction operation device according to any one of claims 1 to 8, characterized in that: The operating device further comprises a negative pressure module, a liquid supply module, a negative pressure pipe (8) and a liquid inlet pipe (9); the negative pressure pipe (8) is in communication with the negative pressure outlet (310); the liquid supply module is in communication with the liquid inlet pipe (9); and the liquid inlet pipe (9) is connected to the middle shell (11) and in communication with the liquid inlet channel (4).

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